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build/node_modules/hydrolysis/lib/loader/xhr-resolver.js

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+/**
+ * @license
+ * Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
+ * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
+ * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
+ * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
+ * Code distributed by Google as part of the polymer project is also
+ * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
+ */
+
+// jshint node:true
+'use strict';
+
+function getFile(url, deferred, config) {
+  /* global XMLHttpRequest:false */
+  var x = new XMLHttpRequest();
+  x.onload = function() {
+    var status = x.status || 0;
+    if (status >= 200 && status < 300) {
+      deferred.resolve(x.response);
+    } else {
+      deferred.reject('xhr status: ' + status);
+    }
+  };
+  x.onerror = function(e) {
+    deferred.reject(e);
+  };
+  x.open('GET', url, true);
+  if (config && config.responseType) {
+    x.responseType = config.responseType;
+  }
+  x.send();
+}
+
+/**
+ * Construct a resolver that requests resources over XHR.
+ * @constructor
+ * @memberof hydrolysis
+ * @param {Object} config              configuration arguments.
+ * @param {string} config.responseType Type of object to be returned by the
+ *     XHR. Defaults to 'text', accepts 'document', 'arraybuffer', and 'json'.
+ */
+function XHRResolver(config) {
+  this.config = config;
+}
+XHRResolver.prototype = {
+  accept: function(uri, deferred) {
+    getFile(uri, deferred, this.config);
+    return true;
+  }
+};
+
+module.exports = XHRResolver;